package com.express.filter;

import com.express.util.UserUtil;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @Author: laixiangdong
 * @Date 2020/12/07
 */
@WebFilter({"/admin/index.html", "/admin/views/*", "/express/*"})
public class AccessControlFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) servletRequest;
        HttpServletResponse resp = (HttpServletResponse) servletResponse;
        if (UserUtil.getUserName(req.getSession()) == null) {
            resp.sendRedirect("/admin/login.html");
        } else {
            filterChain.doFilter(req, resp);
        }
    }

    @Override
    public void destroy() {

    }
}
